The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2023
Filed:
Aug. 06, 2021
Fujifilm Business Innovation Corp., Tokyo, JP;
Kenta Shingu, Kanagawa, JP;
Yoshiteru Yamada, Kanagawa, JP;
Akihiro Kawasaki, Kanagawa, JP;
Keisuke Kusano, Kanagawa, JP;
Kohei Hashimoto, Kanagawa, JP;
Yuto Okazaki, Kanagawa, JP;
Takeshi Iwanaga, Kanagawa, JP;
Wataru Yamada, Kanagawa, JP;
Hirohito Yoneyama, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
An electrophotographic photosensitive member includes a conductive support and a photosensitive layer disposed on the conductive support. A top surface layer of the electrophotographic photosensitive member includes fluorine-containing resin particles, a fluorine-containing dispersant, and two or more charge transporting materials. When the charge transporting materials are listed in order of decreasing HOMO energy levels, a difference in HOMO energy level between each adjacent two of the charge The ratio A of the amount of each of the charge transporting materials to the total amount of the charge transporting materials satisfies the condition 1 below,[(100/)−(100/×0.3)]≤≤[(100/)+(100/×0.3)]  Condition 1